Eaton Transformer - T20P11F15CUNV DS-3 Dry Type 15 kVA
Part Number: T20P11F15CUNV
Quick Summary
The Eaton Transformer T20P11F15CUNV is a dry-type distribution transformer that converts 240/480 V primary power to 120/240 V for industrial panels and equipment. Engineers often face tight spaces, heat buildup, and scheduling challenges when upgrading electrical systems. This unit leverages DS-3 design and a 115°C rise with copper windings to deliver reliable performance in confined environments, backed by a one-year warranty (or 18 months from shipment). Certifications vary by region; consult Eaton for CE, SIL, or IP ratings applicable to your application. In practice, the combination of taps, enclosure considerations, and copper windings reduces installation time, improves uptime, and lowers lifecycle costs for plant-wide distribution.
Product Information
Extended Description
T20P11F15CUNV Eaton: General-Purpose Transformer, Ventilated, Dry Type Distribution, DS-3, Single-phase, PV: 240 X 480V, Taps: 1 at +5% FCAN, 2 at -5% FCBN X 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 120/240V, 115°C, 15 kVA, Cu windings, Frame: 817N
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T20P11F15CUNV
UPC
786680080975
Product Length/Depth
19.5 in
Product Height
37.53 in
Product Width
22.59 in
Product Weight
390 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
Contact Manufacturer
Coil material
Copper
Design
DS-3
Frame
817N
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
60 Hz
Kva Rating
15 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Feature: 15 kVA single-phase design with dual primary voltages (240 V and 480 V). Business Impact: Flexibility to match common utility supplies, reduces need for multiple transformers, and streamlines procurement. Application: Panel feeders, MCCs, and distribution blocks in light-industrial facilities. Feature: Copper windings and robust frame (817N). Business Impact: Lower copper losses, enhanced conductivity, and sturdy mounting for long-term reliability in dynamic plant environments. Application: Enclosed electrical rooms with frequent switching. Feature: Tap settings (1 at +5% FCAN, 2 at -5% FCBN, 2 at +2.5% FCAN, 4 at -2.5% FCBN). Business Impact: Precise voltage regulation across supply variations, reducing nuisance trips and equipment wear. Application: Critical controls and PLC power supplies. Feature: 115°C temperature rise rating. Business Impact: Higher tolerance to heat, enabling safer operation in dense enclosures and warmer environments. Application: Space-constrained electrical rooms. Feature: Compact footprint (19.5 in L, 22.59 in W, 37.53 in H) and 390 lb weight. Business Impact: Easier site integration and handling with standard material-handling equipment. Application: Retrofit projects and retrofit-friendly installations. Feature: 60 Hz, 240/480 V primary, 120/240 V secondary, single-phase. Business Impact: Aligns with North American distribution standards, simplifying compatibility and maintenance. Application: Industrial controls, distribution panels, and subfeed applications. Feature: DS-3 design with enclosure protection. Business Impact: Safe, enclosed operation reduces exposure to dust and moisture, improving maintenance intervals. Application: Enclosed mechanical spaces and retrofit projects. Feature: Warranty and service. Business Impact: Clear ownership and service commitments support total cost of ownership and lifecycle planning. Application: Facility maintenance planning and procurement cycles.
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FAQs
The T20P11F15CUNV supports 240 V and 480 V primary and 120/240 V secondary in a single-phase, 60 Hz configuration. It is well-suited for panel feeders, MCCs, and distribution blocks in light-industrial facilities. Its DS-3 design and copper windings help maintain voltage stability, while the 15 kVA rating provides scalable power for evolving workloads.
Key specs include a 15 kVA rating, single-phase operation, copper windings, 60 Hz frequency, and a 115°C rise rating. Tap settings (+5%, -5%, +2.5%, -2.5%) enable precise voltage regulation. The transformer supports stable 120/240 V secondary outputs from 240/480 V primaries, minimizing issue-prone voltage fluctuations for PLCs, drives, and control circuitry.
Yes. The DS-3 dry-type design emphasizes a totally enclosed, robust enclosure suitable for confined electrical rooms. Its copper windings and frame provide durable performance under temperature rise conditions, while the compact footprint aids installation in space-constrained facilities without compromising safety or serviceability.
Certifications vary by region. The unit lists 'Certifications: Contact Manufacturer', so verify applicable CE, SIL, or IP ratings with Eaton for your location. Manufacturer guidance ensures you meet local electrical codes and industry standards, and helps streamline regulatory approvals during installation and commissioning.
The transformer includes a one-year warranty from installation or 18 months from shipment, whichever occurs first, and uses copper windings for durability. Its robust DS-3 design reduces service frequency, while the tap options support voltage stability, contributing to lower nuisance trips, longer component life, and lower total cost of ownership.